BTK, Btk, etc. may refer to:
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Biology and medicineEdit
- Bacillus thuringiensis kurstaki (Btk), a soil-dwelling bacterium also used as an insecticide
- Bruton's tyrosine kinase, a protein
- Btk-type zinc finger or Btk motif (BM), a zinc-binding motif present in some eukaryotic signalling proteins
Medicine
- BTK (below-the-knee amputation), amputation of the lower limb between the knee joint and the ankle joint
MusicEdit
- "BTK", a song by American band Exodus on their 2014 album Blood In, Blood Out
- "B.T.K. (Dennis Rader)", a song by Japanese band Church of Misery on their 2013 album "Thy Kingdom Scum"
- "Bind Torture Kill", a song by American band Suffocation on their 2006 self-titled album
- Bind, Torture, Kill, a 2006 album by Belgian band Suicide Commando
- Birth Through Knowledge, a Canadian hip-hop/rock band
TelecommunicationsEdit
- Bulgarian Telecommunications Company, (БТК in Cyrillic)
- Information and Communication Technologies Authority in Turkey, (abbreviated as BTK in Turkish)
TransportationEdit
- Baku–Tbilisi–Kars railway connecting Azerbaijan, Georgia and Turkey
- ICAO airline code for Indonesian airline Batik Air
- IATA airport code for Bratsk Airport, Russia
Other usesEdit
- BTK, the ISO 639-2 and ISO 639-5 codes for Batak languages
- Dennis Rader (born 1945), American serial killer known as "BTK"
- Kaiser-Fleetwings XBTK, a US Navy dive and torpedo bomber
- Pillars of Truth (Boutokaan Te Koaua), a political party in Kiribati